diff --git a/encoding/openapi/testdata/array.json b/encoding/openapi/testdata/array.json
index 570d659..5a9136a 100644
--- a/encoding/openapi/testdata/array.json
+++ b/encoding/openapi/testdata/array.json
@@ -9,12 +9,13 @@
                "bar": {
                   "type": "array",
                   "items": {
-                     "default": "1",
+                     "type": "string",
                      "enum": [
                         "1",
                         "2",
                         "3"
-                     ]
+                     ],
+                     "default": "1"
                   }
                },
                "foo": {
@@ -28,12 +29,13 @@
                         "e": {
                            "type": "array",
                            "items": {
-                              "default": "1",
+                              "type": "string",
                               "enum": [
                                  "1",
                                  "2",
                                  "3"
-                              ]
+                              ],
+                              "default": "1"
                            }
                         }
                      }
@@ -52,12 +54,13 @@
          },
          "MyEnum": {
             "description": "MyEnum",
-            "default": "1",
+            "type": "string",
             "enum": [
                "1",
                "2",
                "3"
-            ]
+            ],
+            "default": "1"
          },
          "MyStruct": {
             "description": "MyStruct",
@@ -69,12 +72,13 @@
                "e": {
                   "type": "array",
                   "items": {
-                     "default": "1",
+                     "type": "string",
                      "enum": [
                         "1",
                         "2",
                         "3"
-                     ]
+                     ],
+                     "default": "1"
                   }
                }
             }
diff --git a/encoding/openapi/testdata/nums.json b/encoding/openapi/testdata/nums.json
index fb6efba..69874fe 100644
--- a/encoding/openapi/testdata/nums.json
+++ b/encoding/openapi/testdata/nums.json
@@ -10,14 +10,11 @@
          "neq": {
             "type": "number",
             "not": {
-               "type": "number",
                "allOff": [
                   {
-                     "type": "number",
                      "minimum": 4
                   },
                   {
-                     "type": "number",
                      "maximum": 4
                   }
                ]
diff --git a/encoding/openapi/testdata/oneof-funcs.json b/encoding/openapi/testdata/oneof-funcs.json
index dd0755e..157b53c 100644
--- a/encoding/openapi/testdata/oneof-funcs.json
+++ b/encoding/openapi/testdata/oneof-funcs.json
@@ -8,9 +8,9 @@
       "schemas": {
          "MYSTRING": {
             "description": "Randomly picked description from a set of size one.",
+            "type": "object",
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "exact"
                   ],
@@ -23,7 +23,6 @@
                   }
                },
                {
-                  "type": "object",
                   "required": [
                      "regex"
                   ],
diff --git a/encoding/openapi/testdata/oneof-resolve.json b/encoding/openapi/testdata/oneof-resolve.json
index 217dc9f..629e0dd 100644
--- a/encoding/openapi/testdata/oneof-resolve.json
+++ b/encoding/openapi/testdata/oneof-resolve.json
@@ -7,30 +7,27 @@
    "components": {
       "schemas": {
          "MyString": {
+            "type": "object",
+            "properties": {
+               "exact": {
+                  "type": "string",
+                  "format": "string"
+               },
+               "regex": {
+                  "type": "string",
+                  "format": "string"
+               }
+            },
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "exact"
-                  ],
-                  "properties": {
-                     "exact": {
-                        "type": "string",
-                        "format": "string"
-                     }
-                  }
+                  ]
                },
                {
-                  "type": "object",
                   "required": [
                      "regex"
-                  ],
-                  "properties": {
-                     "regex": {
-                        "type": "string",
-                        "format": "string"
-                     }
-                  }
+                  ]
                }
             ]
          },
@@ -46,60 +43,54 @@
             ],
             "properties": {
                "include": {
+                  "type": "object",
+                  "properties": {
+                     "exact": {
+                        "type": "string",
+                        "format": "string"
+                     },
+                     "regex": {
+                        "type": "string",
+                        "format": "string"
+                     }
+                  },
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "exact"
-                        ],
-                        "properties": {
-                           "exact": {
-                              "type": "string",
-                              "format": "string"
-                           }
-                        }
+                        ]
                      },
                      {
-                        "type": "object",
                         "required": [
                            "regex"
-                        ],
-                        "properties": {
-                           "regex": {
-                              "type": "string",
-                              "format": "string"
-                           }
-                        }
+                        ]
                      }
                   ]
                },
                "exclude": {
                   "type": "array",
                   "items": {
+                     "type": "object",
+                     "properties": {
+                        "exact": {
+                           "type": "string",
+                           "format": "string"
+                        },
+                        "regex": {
+                           "type": "string",
+                           "format": "string"
+                        }
+                     },
                      "oneOf": [
                         {
-                           "type": "object",
                            "required": [
                               "exact"
-                           ],
-                           "properties": {
-                              "exact": {
-                                 "type": "string",
-                                 "format": "string"
-                              }
-                           }
+                           ]
                         },
                         {
-                           "type": "object",
                            "required": [
                               "regex"
-                           ],
-                           "properties": {
-                              "regex": {
-                                 "type": "string",
-                                 "format": "string"
-                              }
-                           }
+                           ]
                         }
                      ]
                   }
diff --git a/encoding/openapi/testdata/oneof.json b/encoding/openapi/testdata/oneof.json
index 2781b7b..b2c0c97 100644
--- a/encoding/openapi/testdata/oneof.json
+++ b/encoding/openapi/testdata/oneof.json
@@ -4,9 +4,9 @@
    "components": {
       "schemas": {
          "MyString": {
+            "type": "object",
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "exact"
                   ],
@@ -18,7 +18,6 @@
                   }
                },
                {
-                  "type": "object",
                   "required": [
                      "regex"
                   ],
diff --git a/encoding/openapi/testdata/openapi-norefs.json b/encoding/openapi/testdata/openapi-norefs.json
index 658290e..0c7e922 100644
--- a/encoding/openapi/testdata/openapi-norefs.json
+++ b/encoding/openapi/testdata/openapi-norefs.json
@@ -8,76 +8,63 @@
       "schemas": {
          "MyMessage": {
             "description": "MyMessage is my message.",
-            "allOf": [
-               {
+            "type": "object",
+            "required": [
+               "foo",
+               "bar"
+            ],
+            "properties": {
+               "port": {
                   "type": "object",
                   "required": [
-                     "foo",
-                     "bar"
+                     "port",
+                     "obj"
                   ],
                   "properties": {
                      "port": {
-                        "type": "object",
-                        "required": [
-                           "port",
-                           "obj"
-                        ],
-                        "properties": {
-                           "port": {
-                              "type": "integer"
-                           },
-                           "obj": {
-                              "type": "array",
-                              "items": {
-                                 "type": "integer"
-                              }
-                           }
-                        }
+                        "type": "integer"
                      },
-                     "foo": {
-                        "type": "number",
-                        "exclusiveMinimum": 10,
-                        "exclusiveMaximum": 1000
-                     },
-                     "bar": {
+                     "obj": {
                         "type": "array",
                         "items": {
-                           "type": "string",
-                           "format": "string"
+                           "type": "integer"
                         }
                      }
                   }
                },
+               "foo": {
+                  "type": "number",
+                  "exclusiveMinimum": 10,
+                  "exclusiveMaximum": 1000
+               },
+               "bar": {
+                  "type": "array",
+                  "items": {
+                     "type": "string",
+                     "format": "string"
+                  }
+               },
+               "a": {
+                  "description": "Field a.",
+                  "type": "integer",
+                  "enum": [
+                     1
+                  ]
+               },
+               "b": {
+                  "type": "string",
+                  "format": "string"
+               }
+            },
+            "oneOf": [
                {
-                  "type": "object",
-                  "oneOf": [
-                     {
-                        "type": "object",
-                        "required": [
-                           "a"
-                        ],
-                        "properties": {
-                           "a": {
-                              "description": "Field a.",
-                              "type": "integer",
-                              "enum": [
-                                 1
-                              ]
-                           }
-                        }
-                     },
-                     {
-                        "type": "object",
-                        "required": [
-                           "b"
-                        ],
-                        "properties": {
-                           "b": {
-                              "type": "string",
-                              "format": "string"
-                           }
-                        }
-                     }
+                  "required": [
+                     "a"
+                  ]
+               },
+               {
+                  "required": [
+                     "b"
                   ]
                }
             ]
@@ -105,150 +92,122 @@
             "format": "int32"
          },
          "YourMessage": {
+            "type": "object",
+            "properties": {
+               "a": {
+                  "type": "string",
+                  "format": "string"
+               },
+               "b": {
+                  "format": "string"
+               }
+            },
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "b"
-                  ],
-                  "properties": {
-                     "a": {
-                        "type": "string",
-                        "format": "string"
-                     },
-                     "b": {
-                        "type": "string",
-                        "format": "string"
-                     }
-                  }
+                  ]
                },
                {
-                  "type": "object",
                   "required": [
                      "b"
-                  ],
-                  "properties": {
-                     "a": {
-                        "type": "string",
-                        "format": "string"
-                     },
-                     "b": {
-                        "type": "number"
-                     }
-                  }
+                  ]
                }
             ]
          },
          "YourMessage2": {
+            "type": "object",
+            "properties": {
+               "a": {
+                  "type": "number"
+               },
+               "c": {
+                  "type": "number"
+               },
+               "e": {
+                  "type": "number"
+               },
+               "f": {
+                  "type": "number"
+               },
+               "d": {
+                  "type": "number"
+               },
+               "b": {
+                  "type": "number"
+               }
+            },
             "allOf": [
                {
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "a"
-                        ],
-                        "properties": {
-                           "a": {
-                              "type": "number"
-                           }
-                        }
+                        ]
                      },
                      {
-                        "type": "object",
                         "required": [
                            "b"
-                        ],
-                        "properties": {
-                           "b": {
-                              "type": "number"
-                           }
-                        }
+                        ]
                      }
                   ]
                },
                {
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "c"
-                        ],
-                        "properties": {
-                           "c": {
-                              "type": "number"
-                           }
-                        }
+                        ]
                      },
                      {
-                        "type": "object",
                         "required": [
                            "d"
-                        ],
-                        "properties": {
-                           "d": {
-                              "type": "number"
-                           }
-                        }
+                        ]
                      }
                   ]
                },
                {
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "e"
-                        ],
-                        "properties": {
-                           "e": {
-                              "type": "number"
-                           }
-                        }
+                        ]
                      },
                      {
-                        "type": "object",
                         "required": [
                            "f"
-                        ],
-                        "properties": {
-                           "f": {
-                              "type": "number"
-                           }
-                        }
+                        ]
                      }
                   ]
                }
             ]
          },
          "Msg2": {
+            "type": "object",
+            "properties": {
+               "b": {
+                  "type": "number"
+               },
+               "a": {
+                  "type": "string",
+                  "format": "string"
+               }
+            },
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "b"
-                  ],
-                  "properties": {
-                     "b": {
-                        "type": "number"
-                     }
-                  }
+                  ]
                },
                {
-                  "type": "object",
                   "required": [
                      "a"
-                  ],
-                  "properties": {
-                     "a": {
-                        "type": "string",
-                        "format": "string"
-                     }
-                  }
+                  ]
                }
             ]
          },
          "Enum": {
+            "type": "string",
             "enum": [
                "foo",
                "bar",
@@ -267,47 +226,30 @@
             ]
          },
          "DefaultStruct": {
-            "allOf": [
+            "type": "object",
+            "properties": {
+               "port": {},
+               "obj": {
+                  "type": "array",
+                  "items": {
+                     "type": "integer"
+                  }
+               }
+            },
+            "default": {
+               "port": 1
+            },
+            "oneOf": [
                {
-                  "oneOf": [
-                     {
-                        "type": "object",
-                        "required": [
-                           "port",
-                           "obj"
-                        ],
-                        "properties": {
-                           "port": {
-                              "type": "integer"
-                           },
-                           "obj": {
-                              "type": "array",
-                              "items": {
-                                 "type": "integer"
-                              }
-                           }
-                        }
-                     },
-                     {
-                        "type": "object",
-                        "required": [
-                           "port"
-                        ],
-                        "properties": {
-                           "port": {
-                              "type": "integer",
-                              "enum": [
-                                 1
-                              ]
-                           }
-                        }
-                     }
+                  "required": [
+                     "port",
+                     "obj"
                   ]
                },
                {
-                  "default": {
-                     "port": 1
-                  }
+                  "required": [
+                     "port"
+                  ]
                }
             ]
          }
diff --git a/encoding/openapi/testdata/openapi.json b/encoding/openapi/testdata/openapi.json
index c60e19e..a8b888a 100644
--- a/encoding/openapi/testdata/openapi.json
+++ b/encoding/openapi/testdata/openapi.json
@@ -5,70 +5,61 @@
       "schemas": {
          "MyMessage": {
             "description": "MyMessage is my message.",
-            "allOf": [
-               {
+            "type": "object",
+            "required": [
+               "foo",
+               "bar"
+            ],
+            "properties": {
+               "port": {
                   "type": "object",
+                  "$ref": "#/components/schemas/Port"
+               },
+               "foo": {
+                  "type": "number",
+                  "allOf": [
+                     {
+                        "$ref": "#/components/schemas/Int32"
+                     },
+                     {
+                        "exclusiveMinimum": 10,
+                        "exclusiveMaximum": 1000
+                     }
+                  ]
+               },
+               "bar": {
+                  "type": "array",
+                  "items": {
+                     "type": "string",
+                     "format": "string"
+                  }
+               }
+            },
+            "oneOf": [
+               {
                   "required": [
-                     "foo",
-                     "bar"
+                     "a"
                   ],
                   "properties": {
-                     "port": {
-                        "type": "object",
-                        "$ref": "#/components/schemas/Port"
-                     },
-                     "foo": {
-                        "allOf": [
-                           {
-                              "$ref": "#/components/schemas/Int32"
-                           },
-                           {
-                              "type": "number",
-                              "exclusiveMinimum": 10,
-                              "exclusiveMaximum": 1000
-                           }
+                     "a": {
+                        "description": "Field a.",
+                        "type": "integer",
+                        "enum": [
+                           1
                         ]
-                     },
-                     "bar": {
-                        "type": "array",
-                        "items": {
-                           "type": "string",
-                           "format": "string"
-                        }
                      }
                   }
                },
                {
-                  "type": "object",
-                  "oneOf": [
-                     {
-                        "type": "object",
-                        "required": [
-                           "a"
-                        ],
-                        "properties": {
-                           "a": {
-                              "description": "Field a.",
-                              "type": "integer",
-                              "enum": [
-                                 1
-                              ]
-                           }
-                        }
-                     },
-                     {
-                        "type": "object",
-                        "required": [
-                           "b"
-                        ],
-                        "properties": {
-                           "b": {
-                              "type": "string",
-                              "format": "string"
-                           }
-                        }
+                  "required": [
+                     "b"
+                  ],
+                  "properties": {
+                     "b": {
+                        "type": "string",
+                        "format": "string"
                      }
-                  ]
+                  }
                }
             ]
          },
@@ -95,9 +86,9 @@
             "format": "int32"
          },
          "YourMessage": {
+            "type": "object",
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "b"
                   ],
@@ -113,7 +104,6 @@
                   }
                },
                {
-                  "type": "object",
                   "required": [
                      "b"
                   ],
@@ -130,11 +120,11 @@
             ]
          },
          "YourMessage2": {
+            "type": "object",
             "allOf": [
                {
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "a"
                         ],
@@ -145,7 +135,6 @@
                         }
                      },
                      {
-                        "type": "object",
                         "required": [
                            "b"
                         ],
@@ -160,7 +149,6 @@
                {
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "c"
                         ],
@@ -171,7 +159,6 @@
                         }
                      },
                      {
-                        "type": "object",
                         "required": [
                            "d"
                         ],
@@ -186,7 +173,6 @@
                {
                   "oneOf": [
                      {
-                        "type": "object",
                         "required": [
                            "e"
                         ],
@@ -197,7 +183,6 @@
                         }
                      },
                      {
-                        "type": "object",
                         "required": [
                            "f"
                         ],
@@ -212,9 +197,9 @@
             ]
          },
          "Msg2": {
+            "type": "object",
             "oneOf": [
                {
-                  "type": "object",
                   "required": [
                      "b"
                   ],
@@ -225,7 +210,6 @@
                   }
                },
                {
-                  "type": "object",
                   "required": [
                      "a"
                   ],
@@ -239,6 +223,7 @@
             ]
          },
          "Enum": {
+            "type": "string",
             "enum": [
                "foo",
                "bar",
@@ -257,31 +242,25 @@
             ]
          },
          "DefaultStruct": {
-            "allOf": [
+            "type": "object",
+            "default": {
+               "port": 1
+            },
+            "oneOf": [
                {
-                  "oneOf": [
-                     {
-                        "$ref": "#/components/schemas/Port"
-                     },
-                     {
-                        "type": "object",
-                        "required": [
-                           "port"
-                        ],
-                        "properties": {
-                           "port": {
-                              "type": "integer",
-                              "enum": [
-                                 1
-                              ]
-                           }
-                        }
-                     }
-                  ]
+                  "$ref": "#/components/schemas/Port"
                },
                {
-                  "default": {
-                     "port": 1
+                  "required": [
+                     "port"
+                  ],
+                  "properties": {
+                     "port": {
+                        "type": "integer",
+                        "enum": [
+                           1
+                        ]
+                     }
                   }
                }
             ]
diff --git a/encoding/openapi/testdata/strings.json b/encoding/openapi/testdata/strings.json
index d62bfff..4b8123b 100644
--- a/encoding/openapi/testdata/strings.json
+++ b/encoding/openapi/testdata/strings.json
@@ -23,7 +23,6 @@
                "myAntiPattern": {
                   "type": "string",
                   "not": {
-                     "type": "string",
                      "pattern": "foo.*bar"
                   }
                }
diff --git a/encoding/openapi/testdata/structural.cue b/encoding/openapi/testdata/structural.cue
new file mode 100644
index 0000000..f1bb1c6
--- /dev/null
+++ b/encoding/openapi/testdata/structural.cue
@@ -0,0 +1,44 @@
+import "time"
+
+Attributes: {
+	//  A map of attribute name to its value.
+	attributes: {
+		<_>: AttrValue
+	}
+}
+
+//  The attribute value.
+AttrValue: {}
+
+AttrValue: {
+	//  Used for values of type STRING, DNS_NAME, EMAIL_ADDRESS, and URI
+	stringValue: string @protobuf(2,name=string_value)
+} | {
+	//  Used for values of type INT64
+	int64Value: int64 @protobuf(3,name=int64_value)
+} | {
+	//  Used for values of type DOUBLE
+	doubleValue: float64 @protobuf(4,type=double,name=double_value)
+} | {
+	//  Used for values of type BOOL
+	boolValue: bool @protobuf(5,name=bool_value)
+} | {
+	//  Used for values of type BYTES
+	bytesValue: bytes @protobuf(6,name=bytes_value)
+} | {
+	//  Used for values of type TIMESTAMP
+	timestampValue: time.Time @protobuf(7,type=google.protobuf.Timestamp,name=timestamp_value)
+} | {
+	//  Used for values of type DURATION
+	durationValue: time.Duration @protobuf(8,type=google.protobuf.Duration,name=duration_value)
+} | {
+	//  Used for values of type STRING_MAP
+	stringMapValue: Attributes_StringMap @protobuf(9,type=StringMap,name=string_map_value)
+}
+
+Attributes_StringMap: {
+	//  Holds a set of name/value pairs.
+	entries: {
+		<_>: string
+	} @protobuf(1,type=map<string,string>)
+}
diff --git a/encoding/openapi/testdata/structural.json b/encoding/openapi/testdata/structural.json
new file mode 100644
index 0000000..b1beee2
--- /dev/null
+++ b/encoding/openapi/testdata/structural.json
@@ -0,0 +1,234 @@
+{
+   "openapi": "3.0.0",
+   "info": {
+      "title": "test",
+      "version": "v1"
+   },
+   "components": {
+      "schemas": {
+         "Attributes": {
+            "type": "object",
+            "required": [
+               "attributes"
+            ],
+            "properties": {
+               "attributes": {
+                  "description": "A map of attribute name to its value.",
+                  "type": "object",
+                  "additionalProperties": {
+                     "type": "object",
+                     "properties": {
+                        "stringValue": {
+                           "description": "Used for values of type STRING, DNS_NAME, EMAIL_ADDRESS, and URI",
+                           "type": "string",
+                           "format": "string"
+                        },
+                        "int64Value": {
+                           "description": "Used for values of type INT64",
+                           "type": "integer",
+                           "format": "int64"
+                        },
+                        "doubleValue": {
+                           "description": "Used for values of type DOUBLE",
+                           "type": "number",
+                           "format": "double"
+                        },
+                        "boolValue": {
+                           "description": "Used for values of type BOOL",
+                           "type": "boolean"
+                        },
+                        "bytesValue": {
+                           "description": "Used for values of type BYTES",
+                           "type": "string",
+                           "format": "binary"
+                        },
+                        "timestampValue": {
+                           "description": "Used for values of type TIMESTAMP",
+                           "type": "string",
+                           "format": "dateTime"
+                        },
+                        "durationValue": {
+                           "description": "Used for values of type DURATION",
+                           "type": "string"
+                        },
+                        "stringMapValue": {
+                           "description": "Used for values of type STRING_MAP",
+                           "type": "object",
+                           "required": [
+                              "entries"
+                           ],
+                           "properties": {
+                              "entries": {
+                                 "description": "Holds a set of name/value pairs.",
+                                 "type": "object",
+                                 "additionalProperties": {
+                                    "type": "string",
+                                    "format": "string"
+                                 }
+                              }
+                           }
+                        }
+                     },
+                     "oneOf": [
+                        {
+                           "required": [
+                              "stringValue"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "int64Value"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "doubleValue"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "boolValue"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "bytesValue"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "timestampValue"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "durationValue"
+                           ]
+                        },
+                        {
+                           "required": [
+                              "stringMapValue"
+                           ]
+                        }
+                     ]
+                  }
+               }
+            }
+         },
+         "AttrValue": {
+            "description": "The attribute value.",
+            "type": "object",
+            "properties": {
+               "stringValue": {
+                  "description": "Used for values of type STRING, DNS_NAME, EMAIL_ADDRESS, and URI",
+                  "type": "string",
+                  "format": "string"
+               },
+               "int64Value": {
+                  "description": "Used for values of type INT64",
+                  "type": "integer",
+                  "format": "int64"
+               },
+               "doubleValue": {
+                  "description": "Used for values of type DOUBLE",
+                  "type": "number",
+                  "format": "double"
+               },
+               "boolValue": {
+                  "description": "Used for values of type BOOL",
+                  "type": "boolean"
+               },
+               "bytesValue": {
+                  "description": "Used for values of type BYTES",
+                  "type": "string",
+                  "format": "binary"
+               },
+               "timestampValue": {
+                  "description": "Used for values of type TIMESTAMP",
+                  "type": "string",
+                  "format": "dateTime"
+               },
+               "durationValue": {
+                  "description": "Used for values of type DURATION",
+                  "type": "string"
+               },
+               "stringMapValue": {
+                  "description": "Used for values of type STRING_MAP",
+                  "type": "object",
+                  "required": [
+                     "entries"
+                  ],
+                  "properties": {
+                     "entries": {
+                        "description": "Holds a set of name/value pairs.",
+                        "type": "object",
+                        "additionalProperties": {
+                           "type": "string",
+                           "format": "string"
+                        }
+                     }
+                  }
+               }
+            },
+            "oneOf": [
+               {
+                  "required": [
+                     "stringValue"
+                  ]
+               },
+               {
+                  "required": [
+                     "int64Value"
+                  ]
+               },
+               {
+                  "required": [
+                     "doubleValue"
+                  ]
+               },
+               {
+                  "required": [
+                     "boolValue"
+                  ]
+               },
+               {
+                  "required": [
+                     "bytesValue"
+                  ]
+               },
+               {
+                  "required": [
+                     "timestampValue"
+                  ]
+               },
+               {
+                  "required": [
+                     "durationValue"
+                  ]
+               },
+               {
+                  "required": [
+                     "stringMapValue"
+                  ]
+               }
+            ]
+         },
+         "Attributes_StringMap": {
+            "type": "object",
+            "required": [
+               "entries"
+            ],
+            "properties": {
+               "entries": {
+                  "description": "Holds a set of name/value pairs.",
+                  "type": "object",
+                  "additionalProperties": {
+                     "type": "string",
+                     "format": "string"
+                  }
+               }
+            }
+         }
+      }
+   }
+}
\ No newline at end of file